Insecticide-fertilizer.



' UNITED STATES PATEN BEIGE.

FREDERICK, G. DOKKENWADEL, OF COSHOOTON, OHIO.

INSE CTICIDE -FEBTILIZER.

ticidal properties increase the efficiency of the fertilizer and the fertilizing properties increase the efficiency of the insecticide. In addition to this the active agents of the composition are incorporated with a durable ase of cellulose material so that, after application to the soil, both agents are graduallv given off and the efficiency of the material both as an insecticide and a fertilizer,'is continued over a longer period of time than would otherwise be possible.

The'cellulose with which the combined in secticide and fertilizer is incorporated may be of any variety, such as pulp fiber derived from wood, fiber, old newspapers or Waste papers, or an fabric material.

The fertilizing materials may comprise any compounds or elements furnishing one or more of the four essential plant foods nitrothe insects-to be combated. The materials used are such as act either as a poison or a repellent or both, for instance crude carbolic acid, kerosene oil, hellebore, crude oil, fish oil, pyrethrum powder, etc. and their use is governed by circumstances of cheapness and effectiveness.

I prefer to use a small uantit of adhesive such as glue, coal tar orilike stic y substance 1n making my composition so as to turn out the finished product in fine granular form,

Specification of Letters Patent,

Application filed November 11, 1907.

Patented May 19, 1908.

Serial No. 401,738.

but if desired the adhesive may be omitted. To make up a required bulk I may also add to the above materials a cheap filler containing any essential fertilizing agent, for instance marl, black muck, peat, etc,

' By wa of example I give below a working formula or the manufacture of an insecticide fertilizer carrying out my invention, but I wish it distinctly understood that the ingredients used and the methods employed may 5 be varied within wide limits and are only limited by the scope of the claims:

To make approximately one ton of my insecticide fertilizer, about llO pounds of nitrate of soda is dissolved in, enough water to make a saturated solution and 300 pounds of muriate of potash is then mixed in the solution. To this solution is. then added 155 pounds of pulp fiber which absorbs the same with eat facility. Then 800 pounds of dissolve phosphatic rock and 335 pounds of 'marl or other filler is thrown into the mass and the whole placed in a mixin machine where the ingredients are thoroug ly incororated and mixed in a homogeneous mass. he material is then passed through a drying machine. The insecticidal ingredients are sprayed on the fertilizer when it is nearly dry and a thorough impregnation takes place. If desired, any of the oily insecticides may be made into an emulsion with soap and water before being added to the fertilizer.' The quantity of insecticide ingredients used per ton of fertilizer varies with the insect to be eradicated and with the quantity of fertilizer to be used per acre. In the use of kerosene and crude carbolic acid, the quantity varies from one to five gallons per ton of finished product.

The important advantage of my invention is the homogeneous mixture of the plant foods and insecticides and the'thorough incorporation of this mixture with a durable base of cellulose material so that it will not be washed away by-the soil draina e waters. These plant foods are graduall taken up by the p ants, insuring a hea thy vigorous growth and the insecticide in redients gradually permeate the soil around the roots and fibers of the plant and thereby prevent all injury from insect attack. Other features of advantage possessed by my composition are as follows: The product will .not get damp and sticky, neitherwill it get hard and lumpy;

it contains no free acid, since the lime con- 110 tained would neutralize any free acid which rial combined with nitrate of soda, sulfate of might be present, hence the fertilizer Will not the whole mass being impregnate rot or eat the bags in which it is contained.

- I claim: v

1. A fertilizer consistin of cellulose conibined with nitrates, potash and phosphates, the Whole mass being impregnated with crude carbolic acid, substantlally as described.

2. A fertilizer consistin of cellulose combined with nitrates, potas and phos hates, with crude carbolio acid and kerosene, substantially as described;

15 3. Afertilizer consisting of cellulose matepotash and soluble phosphates, the whole mass beingv impregnated with crude carbolic acid, substantially as described.

I 4. A fertilizer consisting of cellulose material combined with nitrate of soda, sulfate of potash and soluble phosphates, the Whole mass being impregnated with crude carbolic acid and kerosene, substantially as described.

FREDERICK G. DOKKENWADEL.

Witnesses:

HALsTED WAINRIGIIT, ALLEN G. MERCHANT. 

